package com.servlet.yanglaoyuan;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class CorsConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                //允许所有的前端地址
                .allowedOriginPatterns("*")
                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS") // 必须包含OPTIONS
                .allowedHeaders("*")
                .allowCredentials(true)
                .maxAge(3600); // 预检请求缓存时间
    }
}